TL Series Modular Heat Sinkable Thick Film Power The TL Series add heat sinkable options to the thick film resistor family. The resistor element is packaged with plastic insulators, and quickconnect terminals in a symmetrical aluminum profile for easy heat sink mounting. Special tapped configurations are offered to reduce on board component count. Efficient thermal packaging provides improved heat conduction to the heat sink. Self-insulating package design increases voltage withstanding characteristics when compared to traditional aluminum housings. The in line mounting profile makes the TL Series easily adaptable to most heat sink systems. Thermal compound is always recommended when heat sinking. F e at u r e s Applic a tions • Very low inductance • Low profile design • In-Line Mounting Profile • 1/4” Quick connect terminals • Consult factory for common, isolated, or special multiple tap options. • Semiconductor Balancing • Frequency Converters • Snubber • In-Rush Current Limiter • Bleeder Resistor • Power Switching • Voltage Dividers S ER I E S S P E C I F I C A T I O N S Ultra* Std** Nominal Surge Load Max. Voltage Ohm Series Wattage Wattage Power (10 sec.) between terminals Range TL54 35 27 18 72 1000 0.3Ω - 1MΩ TL71 96 71 48 192 2000 1.0Ω - 2MΩ TL88 155 114 78 312 2500 1.5Ω - 3MΩ TL104 215 158 108 432 2500 2.0Ω - 4MΩ †TL122 275 202 137 548 2500 2.0Ω - 4MΩ * For properly heat sinked, untrimmed resistors - see chart ** For properly heat sinked, trimmed resistors - see chart † Power Ratings are theoretical. Consult Factory for details. Thermal Resistance Ultra Std. (10% tol.) (3%-5% tol.) 1.26 1.67 0.53 0.70 0.34 0.45 0.25 0.33 c h a r a ct e r istics Operating voltage 1200 VAC Dielectric Withstanding Voltage 2500 VAC Resistive Element Thick Film on Alumina Housing Aluminum Insulators Glass reinforced high temperature Valox® Terminals Tinned brass Power Range 27 – 275 watts Resistance Range 0.3Ω – 4MΩ Tolerance Ultra Power (U Style): ±10% std. Standard Power: ±10% std.; 5% and 1% available Temperature Coefficient ±250 PPM THIS PRODUCT IS DESIGNED FOR USE WITH PROPER HEATSINKING. Maximum base plate temperature of the resistor must be monitored and kept within specified limits to establish the power rating. Best technique is to attach a thermocouple to the side of the base plate of the resistor. Temperature of plastic housing or heat sink cannot be used to establish rating of the resistor. Test Voltage for 1 Minute 6000 VDC/2500 VAC Working Voltage 1200 VAC External Creeping Distance 12mm Temperature Limits -40°C to +125°C Insulation >1002 MΩ/500V Air Distance, Terminal to Ground 7mm Inductance 50-100 nH 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] (continued) 159 TL Series Modular Heat Sinkable Thick Film Power po w e r r a tin g s Maximum and nominal power ratings for Ultra Power and Standard Power resistors TL54 Ultra Power Nominal Ultra Power 10 TL71 80 150 Nominal Ultra Power 100 Nominal Standard Power 20 40 60 80 100 Heat sink temp, ϒC 120 140 0 160 0 20 40 60 80 100 Heat sink temp, ϒC 160 Wattage Wattage 140 Nominal Ultra Power Nominal Standard Power 80 Nominal Ultra Power 60 Nominal Standard Power 0 20 40 60 80 100 Heat sink temp, ϒC Ohms R500 = 10R0 = 1K00 = 1M00 = 120 140 0 160 0 20 40 60 80 100 Heat sink temp, ϒC 160 C* 0.25" 6.3 mm ––– 240 ––– 470 ––– 510 ––– 750 ––– 1K0 ––– 1K1 ––– 2K2 ––– 4K7 ––– 5K1 ––– 10K ––– 22K ––– 51K TL122K––– Part No. Prefix Suffix TL104K––– 140 0.20" 5.10 mm TL71K––– TL88K––– Ohmic value TL122K––– 240.0 470.0 510.0 750.0 1,000.0 1,100.0 2,200.0 4,700.0 5,100.0 10,000.0 22,000.0 51,000.0 120 A B TL54K––– TL104K––– TL88K––– TL71K––– TL54K––– 140 d i m e nsions Center tap 0.50 (optional) 10.0 1,000 1,000,000 Ohmic value 120 20 Standard part numbers 160 60 80 100 Heat sink temp, ϒC 40 Tolerance Power Size TL54 = 54 mm F = 1% U = ultra TL71 = 71 mm J = 5% (optional) TL88 = 88 mm K = 10% TL104 = 104 mm TL122 = 122 mm 40 100 TL104KUR500CE ––– R50 ––– 1R0 ––– 1R5 ––– 2R0 ––– 3R0 ––– 4R0 ––– 5R1 ––– 10R ––– 15R ––– 22R ––– 47R ––– 75R ––– 100 ––– 150 ––– 220 20 TL88 E = RoHS compliant 0.5 1.0 1.5 2.0 3.0 4.0 5.1 10.0 15.0 22.0 47.0 75.0 100.0 150.0 220.0 0 Standard Power O RDER I N G I N F O RMA T I O N Part No. Prefix Suffix 0 160 Ultra Power 120 50 0 120 140 TL122 Standard Power 100 Nominal Standard Power 180 250 150 Nominal Ultra Power TL88 Ultra Power 200 60 20 TL122 300 Standard Power 40 50 0 Ultra Power 100 TL104 Standard Power Nominal Standard Power 0 120 200 TL54 Standard Power 20 250 Ultra Power Wattage Wattage 30 TL71 Wattage 40 TL104 Profile 1.01" 25.7 mm 0.98" 25 mm *For adjacent taps, C = 0.665" (16.9mm) Footprint 0.96" 24.4 mm TL54 TL71 TL88 TL104 TL122 A B C mm 54 mm 46 mm 16.9 71 63 33.8 88 80 50.7 104 96 67.6 122 114 84.5 Weight g 33 44 55 65 26 Consult factory for multiple tap options in common, isolated, and special configurations. = Standard values = Non-standard values subject to minimum handling charge per item 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 160